Results 41 to 50 of about 2,349,990 (309)

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

open access: yesAdvanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo   +3 more
wiley   +1 more source

List of railroad enterprises in brazil on the 1st of December 1875 (Table No. 3)

open access: yes, 1876
Map showing provincial railroads in Brazil as of 1876, indicating (with red ink) those already built, in the process of being built, and projected to be built.
Imperial Instituto Artístico (Rio de Janeiro, Brazil)
core  

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Tag questions Tag questions

open access: yesIlha do Desterro, 2008
The so-called 'tag' structures of English have received a lot of attention in language teaching programmes, attention that is not hard to justify when one considers the problems and anxiety they can occasion for many foreign learners.
David Brazil
doaj   +2 more sources

Tensión premenstrual - Clasificación y dificultades diagnósticas

open access: yesRevista Colombiana de Obstetricia y Ginecología, 1955
Continuando algunos trabajos suyos sobre tensión pre-menstrual, el autor afirma que el 90,4% de las mismas llegarán a tener hipertensión menopáusica. El mismo autor da una clasificación etiológica de la tensión pre-menstrual dividiéndola en cinco grupos
Erio Brazil Pellanda
doaj   +1 more source

Brazil

open access: yes, 2014
Date created and issued: 1960/1989.
Samz, Charles
core  

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

open access: yesAdvanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni   +7 more
wiley   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Visiting Brazil – Brazil revisited [PDF]

open access: yesdisP - The Planning Review, 2016
Vor genau 15 Jahren hat disP – The Planning Review ein erstes Sonderheft «Brasilien» herausgegeben, jetzt folgt das zweite.
openaire   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

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